T0b1/wasmtime
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fuzzgen: Add bitcast (#5481)

Browse Source 
* fuzzgen: Add `bitcast`

* fuzzgen: Enable IaddCout for 32/64bit integer on x86_64

These were added in #5285
This commit is contained in:
Afonso Bordado
2022-12-21 00:12:38 +00:00
committed by GitHub
parent b47e644c3d
commit a308828ba2
1 changed files with 25 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
cranelift/fuzzgen/src/function_generator.rs
View File

@@ -188,6 +188,26 @@ fn insert_const(
Ok(())
}
fn insert_bitcast(
fgen: &mut FunctionGenerator,
builder: &mut FunctionBuilder,
_opcode: Opcode,
args: &'static [Type],
rets: &'static [Type],
) -> Result<()> {
let from_var = fgen.get_variable_of_type(args[0])?;
let from_val = builder.use_var(from_var);
let to_var = fgen.get_variable_of_type(rets[0])?;
// TODO: We can generate little/big endian flags here.
let memflags = MemFlags::new();
let res = builder.ins().bitcast(rets[0], memflags, from_val);
builder.def_var(to_var, res);
Ok(())
}
fn insert_load_store(
fgen: &mut FunctionGenerator,
builder: &mut FunctionBuilder,
@@ -252,9 +272,7 @@ const OPCODE_SIGNATURES: &'static [(
(Opcode::IaddCout, &[I8, I8], &[I8, I8], insert_opcode),
#[cfg(not(target_arch = "x86_64"))]
(Opcode::IaddCout, &[I16, I16], &[I16, I8], insert_opcode),
#[cfg(not(target_arch = "x86_64"))]
(Opcode::IaddCout, &[I32, I32], &[I32, I8], insert_opcode),
#[cfg(not(target_arch = "x86_64"))]
(Opcode::IaddCout, &[I64, I64], &[I64, I8], insert_opcode),
#[cfg(not(any(target_arch = "x86_64", target_arch = "aarch64")))]
(Opcode::IaddCout, &[I128, I128], &[I128, I8], insert_opcode),
@@ -1039,6 +1057,11 @@ const OPCODE_SIGNATURES: &'static [(
(Opcode::Istore16, &[I32], &[], insert_load_store),
(Opcode::Istore16, &[I64], &[], insert_load_store),
(Opcode::Istore32, &[I64], &[], insert_load_store),
// Bitcast
(Opcode::Bitcast, &[F32], &[I32], insert_bitcast),
(Opcode::Bitcast, &[I32], &[F32], insert_bitcast),
(Opcode::Bitcast, &[F64], &[I64], insert_bitcast),
(Opcode::Bitcast, &[I64], &[F64], insert_bitcast),
// Integer Consts
(Opcode::Iconst, &[], &[I8], insert_const),
(Opcode::Iconst, &[], &[I16], insert_const),